rotation
n. 旋转, 循环, 轮流 [计] 旋转
发音
词形变化
别名
教材释义与例句
旋转；循环，轮流
释义与例句
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1.
The act of turning around a centre or an axis.
回转
旋转
自转
不可数 可数The earth's rotation about its axis is responsible for its being slightly oblate rather than a sphere.
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2.
A single complete cycle around a centre or an axis.
可数 不可数Earth's moon completes a rotation every twenty-seven days or so.
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3.
A regular variation in a sequence, such as to even out wear, or people taking turns in a task; a duty roster.
可数 不可数Applying crop rotation to a field avoids depleting soil nutrients the way repeated use of a single crop might do.
In rotation, each member of the group would be responsible for the beacon fire.
The medical resident finished a two-week rotation in pediatrics and began one in orthopaedics.
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4.
Тhe movement of investments between different sectors of an economy, or styles of investing, based on anticipated changes in the economic or market cycle.
可数 不可数 商务 金融Sector rotation attempts to capitalize on the tendency of certain sectors to outperform others during specific economic phases, while style rotation involves shifting investments between different investment styles, such as moving from growth stocks to value stocks.
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5.
The set of starting pitchers of a team.
可数 不可数 体育 游戏 -
6.
The step during takeoff when the pilot commands the vehicle to lift the nose wheel off the ground during the takeoff roll. (see also: V2)
可数 不可数 航空 商务 工程 -
7.
Repeated play of songs on a radio station, advertisements on a television channel, etc.
可数 不可数The new single enjoyed heavy rotation on MTV.
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8.
An operation on a metric space that is a continuous isometry and fixes at least one point.
可数 不可数 数学The function mapping (x,y) to (−y,x) is a rotation.
词汇关系
相关短语
词源
Borrowed from Latin rotatiō. By surface analysis, rotate + -ion.
来源：wiktionary